Razor-blade sharpener.



C. A SCOTT & A. G. HUG.

RAZOR BLADE SHARPENER.

APPLICATION FILED NOV. 26. um.

1,299,239. Patented Apr. 1,1919.

" Original application filed. November 9, 1914, Serial No. 870,947. Divided and this application filed November 26, 1917. Serial No. 203,941. V

' join STATES rAnr onion.

C I TON A. soo'r'r AND ALEXANDER e. HUe,

NATIONAL MANUFACTURING AND SPECIALTY COMPANY, or CHICAGO, ILLINoIs,

"- CORPORATION OF ILLINOIS.

OF CHICAGO, ILLINOIS, ASSIGNORS TO RAZOR-BLADE SHARPENER.

To all whom it may concern: I

Be it known that W6,CLINTON A. Scorn: and ALEXANDER-G. The, citizens of the United States, both residing-at Chicago, in

the county of Cook and State of Illinois, have invented a certain new anduseful Improvement fin Razor-Blade Sharpeners, of which the following is a'full, clear, concise, and exact description."

. Ou-r invention relates to devices for sharp en-ing-the blades of safety razors, this application being a division of our original applicationSerial No.87 0,194? filed November As is well known the thickback of the ordinary razor blade forms a guide by which the angle or bevel of the edge, removed from the back by the concavity of the sides,

is'accurately gagedin the operation of honing or stropping. And the narrow extension or tang with the handle to which it is attached forms a means by which the blade .can be held and turned from one side to the otheron the sharpening element. But the bladesof safety razors, consisting as they usually do of thin strips of steel sharpened on one or more edges, have no natural guide mentprovided for it, the employment of corresponding to theback of the ordinary razor; blade, nor have they any means by which they may be held 4 the process of fitting for use when dulled.

One 0 and manipulated.

ject of our invention is to afford meansby which such blades may be securely held in'proper relation to the sharpening element during the various steps of honing,

stropping and setting for use. The blades when held thereby may readily be turned from side to side to-alternate the strokes on opposite sides of the edge, andare positively held at the proper-angle to give the edges a uniform and correct bevel. And the pre determined angle is held during the stroke,

no matter how careless or unskilled the operator. -Q

The invention also has for its objects the provision of means limiting the angle through which the pivoted blade holder may swing, so weighting or otherwise controlling the position of the blade holder that itgwill swing betweenthe limits of move- .A recessed portion 8 Patented Apr. 1, 1919.

means to define the angle at which the blade contacts with the sharpening element and which is preferably of suificient weight to 'ever,being substantially the same; Fig. 2

is a side view of the same in Operative position; and Fig. 3 shows the blade holder disconnected from the handle.

Like parts are indicated by similar characters of reference throughout the diiferent figures.

1 is a blade holder having the jaws 2-2. provides clearance for one part of a razor blade, while the front edges are closely brought together to receive the edge which is to be presented to the sharpening element. The said jaws may be made, though not necessarily, of one piece of spring material brought closely together at the point l, and-there secured by screws or rivets 5. The piece of which the blade holder sides are formed should be continued backwardly and so formed as to provide at 6 for the reception of a pin'7, which acts as a pivot upon which the blade holder may have limited pivotal movement, as hereinafter described. The axis of swinging .movement afforded by the pivotal connection at 7 between the handle and the blade holder is normally substantially fixed with respect-to the handle 11. The backward or rearward extension of the blade holder is oifset upwardly and downwardly to extend laterally of the bladeholder in opposite directions on the side of the axis afliordedby the'pin 7 opposite to that upon which the blade edge'that is to be sharpened is disposed. By thus extending the backward or rearward extension of the blade holder laterally of the blade holder there are afforded two relatively fixed engaging parts 9? on the blade holder that extend laterally thereof in Opposite directions. One of these engaging parts is engagable with a sharpening element simultaneously wlth one side of the blade and the other of these engaging v parts is engagable with the sharpening element simultaneously with the other side of the blade to define the angle of the blade to the sharpening element. Such angle is determined by the vertical distance 17 from the point of contact to the plane of the blade. Weight may be added, as indicated at 17, to enable the part of the blade holder to the rear of the pivotal pin 7 to overbalance the jaws and the blade on the front side of the pivotal. pin 7. The handle 11 is extended to form the arms or bifurcations 12 at the ends of which, by means of the pin 7, the blade holding jaws are pivoted to the handle. Lugs 13 and 13 on each side of the arms project inwardly therefrom and areadapted to engage the backwardly extended portions of the blade holder and limit the pivotal action thereof to the space inclosed between said lugs. By this'construction a connection is provided between the handle and blade holder that affords an axis of swinging movement for the blade holder which is normally substantially fixed with respect to the handle and which axis of movement is located with reference to the blade holder to have the blade edge-that is to be sharpened disposed upon one side of said axis.

The device may be used in connection with a hone of any desired quality or other sharpening means, the upper face of which is indicated by the line l515 in Figs. 2 and 3. A blade 16, which is to be sharpened, is

slipped between the aws 2 leaving the exposed edge 16. The overweighted rearwardly extended portion of the holder causes the same to be tilted by gravity until the rearwardly extending portion is in contact with the lower lugs 13 on the arms 12. The lower engaging part 9 is thereby adapted to rest upon the upper face of the sharpening element and to positively gage the angle at which the edge 16' is applied thereto. After the operator has given one or more movements of the edge upon the hone or sharpening face, the device is reversed, when the overweighted rear portion drops until the rearwardly extending portion is in contact with lugs 13, whereby the other engaging part 9 rests on the sharpening element, causing the edge 16 of the blade to assume its proper angle. The reversals of the device may rapidly follow each other, the jaws automatically taking the proper angle with the sharpening face to impart the correct bevel to the blade held within them. 7

While I have herein shown and particularly described the preferred embodiment of my inventionl do not wish to'be limited to the precise details of construction shown as changes may readily be made without clep'arting from the spirit of my invention, but having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. A device for holding a razor blade that is to be sharpened including a handle; a blade holder; a connection between the'handle and blade holder afiording an axis of swinging movement for the blade holder which is normally substantially fixed with respect to the handle, and which axis of movement is located with reference to the blade holder to have the blade edge that is to be sharpened disposed upon one'side of said axis;and two relatively fixed engaging parts on the blade holder extending laterally of the blade holder in opposite directions on the other side of said axis whereby one of said engaging parts is engageable with a sharpening element simultaneously with one side of the blade and the other engaging parts is engageable with the sharpening element simultaneously with the other side of the blade to define the angle of'the blade to the sharpening element.

2. A device for holding a razor blade that is to be sharpened including a handle; a bladeholder; a connection betweenthe handle and blade holder affording an axis of swinging movement for the blade holder which is normally substantially fixed with respect to the handle, and which axis of movement is located with reference to the blade holder to have the blade edge that is to be sharpened disposed upon one side of said axis; two relatively fixed engaging parts on the blade holder extending latorally of the blade holder in opposite. direct-ions on the other side of said axis Whereby one of said engaging parts is engageable with a sharpening element simultaneously with one side of the blade and the other engaging part is engageable with the sharpening element simultaneously with the other side of the blade to define the angle of the blade to the sharpening element, said holder being sufficiently weighted upon the same side of said axis with said engaging parts to turn the holder by gravity; and means for limiting the swinging movement of the holder with reference to the handle to an angle less than one hundred eighty degrees.

3. A device for holdinga razor blade that is to be sharpened including a handle; a

blade holder; a connection between the hair dle and blade holder affording an axis of swinging movement for the blade holder which is normally substantially fixed with respect .to the handle, and which axis of movement is located with reference to the blade holder to have the blade edge that'is to be sharpened disposed upon one side of said axis; two relatively fixed engaging parts on the blade holder extending laterally of the blade holder in opposite directions on the other side of said axis whereby I one of said engaging parts is engageable With a sharpening element simultaneously with one side of the blade and the other engaging part is engageable with the sharpening element simultaneously with the other side of the blade to define the angle of the blade to the sharpening element; and means for limiting the swinging movement of the holder with reference to the handle to an angle less than one hundred eighty degrees. 1)

In Witness whereof, we hereunto subscribe our7names this 23rd day of November, A. D., 191

CLINTON A. SCOTT. ALEXANDER G. HUG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

